Harrow.



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Patented Feb. 27,' 1912.

W. B. ROSS.

HARROW.`

APPLICATION FILED NOV. 28, 1910.

COLUMBIA PLANOGRAPH co.,\v^sn|NaTON. D. c.

W. B. ROSS.

HARROW.

LIOATION FILED Nov. 2s, 1910.

Patented Feb.27,1912.

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)lll Illllllll'fl COLUMBIA PLANocmAPH c0..wAsHlNuToN. D. C.

PATENT oEEIcE.

WILLIAM E. Ross, oF DUoUoIN, ILLINOIS..

HARROW.

Specification of Letters Patent.

Patented Feb. 27, 1912.

Application led November 28, 1910. Serial No. 594,609.

To all whom t may concern.'

.Be it known that I, WILLIAM E. Ross, a citizen of the United States,residing at Duquoin, in the county of Perry, State of Illinois, haveinvented certain new and useful'Improvements in I-Iarrows; and I dohereby declare the following to be a full, clear, and eXact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to` make and use the same.

This invention relates to harrows and has for its primary object toprovide a harrow that may be sov attached to a plow as to be readilyadjusted to penetrate into the soil to any desired depth, novel meansbeing employed to yieldingly hold the harrow in its adjusted positionsso that the harrow may adapt itself to unevenness in the soil.

' With the above objectin view the invention consists in certain noveldetails of construction and combination of parts hereinafter fullydescribed and claimed, it being understood that various modificationsmay bemade in the minor details of construction within the scope of t-heappended claims.

In the accompanying drawing forming part of this specification Figure 1is a side elevation of a harrow embodying my improvements attached to aplow. Fig. 2 is a plan view of the plow and harrow shown in Fig. 1. Fig.3 is a perspective view of the lateral adjusting arm attaching means.

. Referring now to the drawingin which like characters of referencedesignate similar parts, a conventional plow is illustrated comprising abeam 10, a share 11, and an adjustable gage wheel 12 on the beam inadvance of the share. part of the present invention beingsimply shown toillustrate a plow of ordinary construction to which the invention may beattached.

The harrow comprising the subject-matter of this invention consistsessentially of a straight elongated attaching iron 13 which is arrangedabove and in parallelism with the plow beam and projects rearwardlybeyond the beam as shown. A pair of spaced A upstanding bars 14 arebolted at their opposite ends to the beam and attaching iron and rigidlysecure the parts together. Pivotally secured to one side of theattaching iron above the rear end of the beam is a lifting rod 15, thisrod extending considerably beyond the rear end lof the attaching ironand These parts formA noV being pivotally connected to the harrow framewhich will be presently described. The pivotal connection of the liftingrod with theV attaching iron may be constructed in any preferred manner,a practical eX- pedient being to iiX to one side of the attaching iron abracket comprising a base plate 16 from t-he outer face of whichprojects an angle iron finger 17 through which and the base platesuitable openings are formed to receive aspivot pin 18 which projectslaterslly from the forward end of the lifting ro The harrow comprises adraft beam 19 which is provided at its forward end with an upwardlycurving goose-neck 20, that underlies the approximate central portion ofthe lifting rod and is connected thereto through the instrumentality ofan upstanding link a'21, bolts 22 and 23 being passed through the linkand goose neck and through the link land lifting rod respectively toattain this end. In order that the inclination of the draft iron may bevaried relatively to the lifting rod, a plurality of orifices 24 areformed in the upper end of the link through which the bolt 23 may beselectively engaged. A pair of outwardly inclined wings 25 are securedat their forward ends to the drafty iron, and a pair of similar wings 26are secured at their forward ends to the draft iron in rear of the rstnamed wings, both pairs of wings being held in rigid relation to thedraft iron through the instrumentality of cross braces '27 bolted attheir inner ends to the draft iron and at their outer ends to the innerfaces of the wings. A plurality of teeth 28 are secured at spacedintervals along the outer faces of both pairs securing the teeth inposition as shown.

For yieldingly holding the above described harrow in the soil and for"adjusttrate, the following mechanism is employed: A bifurcated bracketarm 30 isfXed in upright position to the rear end of the attaching iron,a sheave 31 being mounted in the bifurcation of the bracket. Trainedover which is loosely connected to the lifting rod 15 by a clevis 33,this clevis being selectively engaged in a series of openings 34 formedchain to the rod. To the opposite end of the chain is attached one endof a link 35, 'this in the;lifting rod to adjustably secure the ofwings, strap brackets 29 being utilized in the sheave is a link-chain32,one end of ing the depth to which the harrow will peneimo link extendingforwardly along the plow beam and being loosely connected at its forwardend to the intermediate portion of a handle lever 36. Upon thrustingforward this lever the harrow will be lifted bodily through theinstrumentality of the cable just described, and upon thrustingrearwardly this lever, the harrow will be lowered to its operativeposition. To limit downward movement of the harrow, the lever is pivotedat its lower end to thespider 37 of a notched segment 38, a spring latch39 being secured to the lever and equipped with a dog 40 whichoperatively engages the segment. Through the instrumentality of thissegment yand dog, the lever may be locked at any position desired, theharrow gravitating as the lever is thrust rearwardly until its teethpenetrate the soil. For yieldingly holding the harrow in its operativeposition a helical spring 41 is loosely connected at one end to thegoose neck of the harrow and is adjustably connected at its other end tothe draft iron, this spring operating to exert a constant forward pullupon the harrow, and by yvirtue of the harrow being pivotally connectedto the draft iron by the lifting rod 15, the spring will tend to rockthe harrow in an arc ofP a circle of which circle the lifting rod is theradius, and thus will at all times hold the harrow rmly down into thesoil.

It is obvious that the harrow may be maintained in a horizontal plane ormay be inclined relatively to the plow beam by selectively engaging thebolt 23 in the opening 24 which will accomplish this end.

For adjustably securing the forward end of the spring to the attachingiron so that the tension of the spring may be varied, a bracket isemployed including a base plate 42 which is bolted or otherwise securedto the side of the draft iron, an arm 43 extending from this base plateand being provided with a tubular bearing box 44 in which works theshank of a J-bolt 45, the bill of this bolt operatively engaging theforward ends of the spring, and an adjusting nut 46 being arranged onthe bolt and bearing against the forward face of the bearing as shown,manipulation of this nut causing the advance or retraction of the boltin the bearing with consequent varying of the tension of the spring.

It will here be noted that the lifting rod 15 is loosely connected tothe approximate central portion of the harrow draft-iron 19, Yconnection between the parts beinv made by a bracket including a baseplate 4 -which is fixed to the upper faces of the draft iron and forwardends of the rearmost wings 26,

and is equipped Von its upper facevwith a pair of upstanding ears 48between which the rear v end of the lifting rod is engaged, a pivot pinbeing passed through the 'ears and rod to pivotally secure the partstogether. In order to shift the harrow laterally to adjust the harrow tovarying conditions during harrowing, a link 49 is loosely connected atone end to the lifting rod 15, and is provided at its other end with aneye which encircles a staple 50, the legs of this staple being slidablyfitted in tubular bearings 5l which are mounted on the opposite ends ofan oblong block 52, this oblong block being hingedly connected to thecross beam of the plow, through the instrumentality of hinge ears 53 onthe block interlitting with hinge lugs 54 carried upon a plate 55 whichis bolted or otherwise rigidly secured to the cross bar.- Set screws 56are threaded into the tubular bearings 51 andV bear against the legs ofthe staple. By advancing the legs of the staples through the bearings inthe direction of the cross bar, the link 49 will be drawn in thedirection of theocross bar and will shift the harrow toward thelongitudinal center line of the plow, and when the legs of the stapleare slid outwardly in the tubular bearings, the harrow will be shiftedaway from the longitudinal center line of the plow.

What is claimed, is

1. The combination with a harrow having a draft beam, of attaching meansin-l cluding an elongated attaching iron, a lifting rod pivotallysecured to saidv attaching iron and to said draft beam, a helical springsecured to said attaching iron and to said beam in advance of saidlifting rod, a stand link secured to said draft beam and to said liftingrod and spanning the space between said rod and said spring, and aflexible lifting means attached to said lift-ing rod.

2. The combination with a harrow having a draft beam, of zin-attachingmeans including an attaching iron, a lifting rod pivotally connected tosaid attaching iron and to said draft beam, a helical spring secured tosaid attaching iron and to the leading end of said draft beam, a standlink secured Vto the leading end of said draft beam and to said liftinglink, means for rocking said lifting rod on its pivot, and combinedshiftingv and bracing means carried by said lifting link including alink loosely'connectedV at one end to said' lifting'link, and means atthe opposite end of said link for adjustably securing the link to arigid support-.

3. The combinationV with a harrow of at-l taching means including anattaching iron, arlifting rod'pivotally secured to said yattaching ironand depending therefrom, and pivotally secured at, its free end to saiddraft beam,ra helical spring terminally secured to said attachment ironand -to the leading end of said draftbeam, a spacing' link carried bythe free end of said draft beam and securedto said'lifting rod, andcombined bracing and shifting means car-` loo ried by said lifting rodincluding a link loosely connected at'one end to said lifting rod, aswinging member adapted to be secured to a rigid support and having atubular bearing, and an adjusting velement loosely connected at one endto the last named link and adjustably held within said bearing. Y

4. A harrow including* a longitudinal draft beam, an attaching irondisposed above and substantially parallel with said draft beam, alifting rod pivotally secured to the intermediate portion of said beamand inclining upwardly therefrom, a pivotal connection between the upperend -of said link and said attaching iron, a helical spring secured tosaid attaching iron in advance of said lifting rod and secured at itslower end to the free end of said draft beam, and a spacing linkconnected at one end to the free end of said draft beam and adjustably lconnected at its opposite end to saidlifting 5. A harrow having a draftbeam, an attaching iron above and arranged approximately parallel withsaid draft beam, a lifting rod pivotally connected at one end to theintermediate portion of said attaching iron and pivotally connected atits opposite end to the intermediate portion of said draft beam, ahelical spring connected at one end to the forward end of said draftbeam and adjustably connected at its opposite end to said attaching ironin advance of said lifting rod, a spacing rod connected at one end tothe forward end of said draft beam and adjustably connected at itsopposite end to the intermediate portion of said lifting rod, anoperating lever onpsaid attaching iron, a sheave on said attaching iron,and al flexible cable trained over said sheave and connected at itsopposite ends to said lifting rod andato said lever;

E. B. MAGLIN, HENRY HORN, Jr.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, '.D. C.

